Re: [ccp4bb] UV light source for protein xtal detection

2008-05-16 Thread James Holton
that 280nm UV is extremely harmful to human eyes and skin. Zhijie Li - Original Message - From: Torres-Larios Alfredo [EMAIL PROTECTED] To: CCP4BB@JISCMAIL.AC.UK Sent: Wednesday, May 14, 2008 7:59 PM Subject: [ccp4bb] UV light source for protein xtal detection Dear all, Here's

Re: [ccp4bb] UV light source for protein xtal detection

2008-05-16 Thread Anderson, Marie
Of James Holton Sent: Friday, May 16, 2008 10:48 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] UV light source for protein xtal detection It is not the light source that is expen$ive, but rather the microscope optics and the camera. Standard optical glass has a fairly high absorption in the UV

Re: [ccp4bb] UV light source for protein xtal detection

2008-05-16 Thread Robert Sweet
PROTECTED] To: CCP4BB@JISCMAIL.AC.UK Sent: Wednesday, May 14, 2008 7:59 PM Subject: [ccp4bb] UV light source for protein xtal detection Dear all, Here's another non CCP4 question: does anyone know a cheap alternative to set up a UV source at 280 nm? I'd really like to have one :), but I really

Re: [ccp4bb] UV light source for protein xtal detection

2008-05-15 Thread R.M. Garavito
Alfredo, It's not clear from your email what your purpose is: to illuminate a crystal/sample on a microscope stage or on a goniostat. In either case, you might check out Ocean Optics (http:// www.oceanoptics.com/). They have based their systems on fiber optic light sources and CCD

Re: [ccp4bb] UV light source for protein xtal detection

2008-05-15 Thread Li Zhijie
@JISCMAIL.AC.UK Sent: Wednesday, May 14, 2008 7:59 PM Subject: [ccp4bb] UV light source for protein xtal detection Dear all, Here's another non CCP4 question: does anyone know a cheap alternative to set up a UV source at 280 nm? I'd really like to have one :), but I really don't have the $20K

Re: [ccp4bb] UV light source for protein xtal detection

2008-05-15 Thread Mark Agacan
I put an array of UV LEDS on a ceramic block and connected to a power source, as a means of detecting very small crystals once they are in the loop. The most difficult part was supporting the LED block so that it shone onto the loop but did not obstruct the user. The so-called UV LEDS are

Re: [ccp4bb] UV light source for protein xtal detection

2008-05-15 Thread V. Nagarajan
Zhijie Sent: Thursday, May 15, 2008 9:36 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] UV light source for protein xtal detection Hello, You may want to have a look at the UV LEDs, which should be the cheapest option if you only need a specific wavelenth. I found this on google: http://www

[ccp4bb] UV light source for protein xtal detection

2008-05-14 Thread Torres-Larios Alfredo
Dear all, Here's another non CCP4 question: does anyone know a cheap alternative to set up a UV source at 280 nm? I'd really like to have one :), but I really don't have the $20K Dlls needed to buy a UV/white light source from the crystallographic vendors :(. Thanks so much in advance for