Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E. R." Newsgroups: alt.comp.os.windows-11,alt.comp.os.windows-10,comp.os.linux.advocacy,comp.os.linux.misc Subject: Re: OT - TV (now radio) Date: Sun, 4 Oct 2026 12:35:41 +0200 Lines: 90 Message-ID: References: <118cshs$2v7m0$1@dont-email.me> <118s7it$bikd$1@dont-email.me> <118t6mg$k4sv$1@dont-email.me> <6ab2a761$0$18$882e4bbb@reader.netnews.com> <11903in$1iec7$8@dont-email.me> <6ab3e515$0$4084717$882e4bbb@reader.netnews.com> <11930dh$2hl7b$16@dont-email.me> <1198cmt$f7bj$1@dont-email.me> <119ala6$16att$1@dont-email.me> <119bcr5$1er7u$1@dont-email.me> <119bgms$1glpo$5@dont-email.me> <119e2lr$2fsmi$1@dont-email.me> <119e3i8$2ffih$1@dont-email.me> <119el1q$2ndhc$1@dont-email.me> <119g1cm$34jdi$5@dont-email.me> <133vomxfqp.ln2@Telcontar.valinor> <119kdnj$oq6h$2@dont-email.me> <119lgp3$147lq$5@dont-email.me> <119o56h$21k2o$11@dont-email.me> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net nJdVsbfhmofLala6Nd6JSgJgBOlMH4mQG0NeR4YX574z3GJegf Cancel-Lock: sha1:AvQc7cmEQtG6OGfmefDHHWLD8lQ= sha256:mYCX/WUoRr8Y2oHVBdK51Ci6Wkf8GaAzuxFztql/WGI= User-Agent: Mozilla Thunderbird Content-Language: en-GB In-Reply-To: Xref: csiph.com alt.comp.os.windows-11:35714 alt.comp.os.windows-10:196576 comp.os.linux.advocacy:723231 comp.os.linux.misc:92817 On 2026-10-03 05:44, c186282 wrote: > On 10/2/26 07:40, The Natural Philosopher wrote: >> On 01/10/2026 21:03, Carlos E. R. wrote: >>> On 2026-10-01 13:39, The Natural Philosopher wrote: >>>> On 01/10/2026 02:41, J. P. Gilliver wrote: >>>>> I'm pretty sure my dentist still uses film and X-rays, though they >>>>> seem >>>>> to develop (and scan) them_amazingly_  quickly - but they still go out >>>>> of the room (same principle as the shoe salesmen, I think) to fire the >>>>> machine. >>>> >>>> The  changeover to all digital stared about 20 years ago and is not >>>> yet complete. Because the kit is very expensive and photos work >>>> pretty well >>> >>> The private clinic I go to some times (covered by my insurance) >>> changed the to digital plates maybe a year ago. I was very surprised >>> when I noticed them reusing the plate without changing the film, and >>> asked. >>> >>> I did not know there were sensor plates suitable for X-rays. >>> >> I am not totally sure, but I think that you can use a standard light >> sensor in conjunction with a a fluorescent screen. >> >> There may well be semiconductor arrays that resonnd directly to X rays >> as well >> >> Umm.... goggle google google... >> >> "Flat Panel Detectors (FPDs) >> >> Direct Conversion FPDs: Use a semiconductor material (like amorphous >> selenium) to convert X-ray photons directly into electrical charges. >> They offer high spatial resolution and sharp image clarity. >> >> Indirect Conversion FPDs: Use a scintillator layer (like caesium >> iodide) to turn X-rays into visible light first. A photodetector array >> (like amorphous silicon) then converts that light into an electrical >> signal. >> >> Solid-State Dental Sensors (CCD and CMOS) >> >> Charge-Coupled Device (CCD) Sensors: Couple a scintillator to a >> silicon chip to transport and read out charges. They provide high >> sensitivity and low noise, but tend to cost more and use more power. >> >> >> Complementary Metal-Oxide-Semiconductor (CMOS) Sensors: Feature >> individual amplifiers at every pixel, allowing faster readout, lower >> power usage, and smaller designs. They are standard in modern digital >> intraoral imaging" >> >> >> >> Well there you go. > >   Of note, such high-rez/high-sensitivity sensors >   have been around for over a decade. They keep >   getting better. Even the first were better than >   the usual film pix. > >   I *think*, but am not sure, that 'direct' is the >   tech of choice now. The sharpness suggests that >   they aren't lighting-up phosphors. The thickness >   of the sensors seems to preclude using fiber-optic >   inserts to isolate off-axis glow. > >   Anyway, if YOUR dentist is still using film and >   that big x-ray rig ......... > >   Do they keep a jar of leeches too ... ? A foot- >   powered low speed drill ....... ? > >   Somewhere I found a 'restored' version of one of >   those 19th century drills. All pretty. Tempted to >   buy it for my dentists to keep under glass in >   the lobby  :-) I see one clinic nearby that has cushioned seats shaped as molars. Surely they fin them cute, but they shoo me away. I will never enter that place. No, I would be endeared to finding an old drill in a glass case. -- Cheers, Carlos E.R. ES🇪🇸, EU🇪🇺.