4HTK:
reference: Mitigation of X-ray damage in macromolecular crystallography by submicrometre line focusing., Finfrock YZ, Stern EA, Alkire RW, Kas JJ, Evans-Lutterodt K, Stein A, Duke N, Lazarski K, Joachimiak A, Acta Crystallogr D Biol Crystallogr. 2013 Aug;69(Pt 8):1463-9. doi:, 10.1107/S0907444913009335. Epub 2013 Jul 17. PMID: 23897469

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